Exam 9: Earthquakes and Earths Interior

________is the maximum possible damage designation on the Mercalli scale.

The average composition of the oceanic crust is thought to approximate that of .

The mechanism by which rocks store and eventually release energy in the form of an earthquake is termed________ .

The _______earthquake was accompanied by extensive fire damage.

The dense core of Earth is thought to consist predominantly of _________ .

The average composition of the continental crust most closely approximates that of _________ _.

________is another name commonly used by scientists to denote seismic sea waves induced by earthquakes.

What instrument is used to record earthquake vibrations?

Overall, this type of seismic wave is the most destructive.

The Mercalli Scale is a scale from ________.

The asthenosphere is located________ .

The__________ is the site of initial rupturing associated with an earthquake.

The amount of destruction caused by earthquake vibrations is affected by ________.

Major earthquakes are often followed by somewhat smaller events known as__________ .

________is the name of the earthquake- magnitude scale based on the amount of total energy released during a large earthquake.

The position on Earth's surface directly above the earthquake source is called the________ .

________refers to the tendency for a foundation material to lose its internal cohesion and fail mechanically during earthquake shaking.

When an earthquake occurs, energy radiates in all directions from its source. The source is also referred to as the ________.

The distance between a seismological recording station and the earthquake source is determined from the________.

The record of an earthquake obtained from a seismic instrument is a(n)________.